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A high-throughput magnetic solid-liquid separation device and its method for purifying magnetic particles in wastewater

A solid-liquid separation and magnetic particle technology, applied in the field of comprehensive utilization of sewage resources, can solve the problems of low efficiency, high energy consumption and high cost, and achieve the effect of expanding the volume of the sorting chamber, improving the processing capacity, and realizing the separation of liquid and solid.

Active Publication Date: 2019-09-13
CHANGSHA HASKY ENVIRONMENTAL PROTECTION TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In view of the defects of high energy consumption, high cost and low efficiency in the solid-liquid separation technology of the high gradient magnetic separator in the prior art, the purpose of the present invention is to provide a fast, efficient and low-cost solid-liquid separation High-throughput magnetic solid-liquid separation device, which can realize continuous separation of liquid and solid, is easy to operate, and is conducive to industrial applications

Method used

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  • A high-throughput magnetic solid-liquid separation device and its method for purifying magnetic particles in wastewater
  • A high-throughput magnetic solid-liquid separation device and its method for purifying magnetic particles in wastewater

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Embodiment 1

[0036] Use the high-throughput magnetic solid-liquid separation device and method of the present invention to treat a certain municipal sewage in Guangxi, whose suspended solids content is 159mg / L, add magnetic seeds 1g / L to the sewage, then use strong sodium oxide to adjust the pH to 8.5, and Add the flocculant non-ionic polyacrylamide 5mg / L, turn on the solid-liquid separation equipment, the magnetic field strength is 12000GS, the rotation speed is 1000r / min, the sewage is put into the sorting chamber from the feed port, and the solid components are discharged from the discharge port. The clear liquid is discharged from the purified water outlet, the water content of the solid component is 55-60%, and the suspended solid content of the clear liquid is less than 10mg / L.

Embodiment 2

[0038] Utilize the high-throughput magnetic solid-liquid separation device and method of the present invention to process starch factory phosphorus-containing starch wastewater, its suspended solids content is 2020mg / L, total phosphorus 158mg / L, add maghemite 5g / L in sewage, and then Use strong sodium oxide to adjust the pH to 9.3, first add the flocculant polymerized ferric sulfate 10mg / L, then add the flocculant non-ionic polyacrylamide 5mg / L, turn on the solid-liquid separation equipment, the magnetic field strength is 15000GS, and the rotation speed is 1200r / min , put the sewage into the sorting chamber from the feed port, the solid components are discharged from the discharge port, the clear liquid is discharged from the purified water outlet, the water content of the solid components is 42-48%, and the suspended solids content of the clear liquid is less than 10mg / L. Total phosphorus is less than 5mg / L.

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Abstract

The invention discloses a high-flux magnetic solid-liquid separation device and a method thereof for purifying a magnetic particulate matter in wastewater. The device comprises an excitation system and a centrifugal sorting system, wherein a main body of the centrifugal sorting system is in the form of an inverted circular truncated cone and further has a sorting cavity which is of a double-layer structure of an inner cavity and an outer cavity; the top of the sorting cavity is provided with a material feeding opening and a purified water outlet; the bottom of the sorting cavity is provided with a magnetic material outlet and a driving device; the inner surface of the side wall of the inner cavity of the sorting cavity is provided with a magnetic medium; the excitation system comprises at least two groups of exciters; the exciters are uniformly distributed on the side surface of the exterior of the outer cavity of the sorting cavity. According to the device, a high-gradient magnetic field, a centrifugal force field and a gravitational field are organically combined; the device is applied to the purification of the magnetic particulate matter in the wastewater; the quick and high-efficiency separation of a superfine solid suspended matter can be realized; further, a method for treating the wastewater by utilizing the device is simple in process and convenient to operate; the industrialized production is realized.

Description

technical field [0001] The invention relates to a solid-liquid separation device, in particular to a high-throughput magnetic solid-liquid separation device and its application method in purifying magnetic particles in wastewater, and belongs to the technical field of comprehensive utilization of sewage resources. Background technique [0002] Since the National Development and Reform Commission put forward the bill on energy conservation and emission reduction in 2007, more and more people have put forward golden ideas for energy conservation and emission reduction. Coupled with the frequent occurrence of natural disasters and climate change in recent years, the country proposed the concept of "low carbon" in 2008, and this year more and more people are promoting low carbon life. With the rapid development of the economy, the treatment rate of urban sewage and industrial wastewater in my country is also increasing year by year. At the same time, a large amount of sludge is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/12
Inventor 孙伟胡岳华韩海生
Owner CHANGSHA HASKY ENVIRONMENTAL PROTECTION TECH DEV CO LTD
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